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package hu.mapro.model.generator;

import java.util.Iterator;
import java.util.List;
import java.util.Set;

import com.google.common.collect.Sets;
import com.sun.codemodel.JClass;
import com.sun.codemodel.JCodeModel;
import com.sun.codemodel.JDeclaration;
import com.sun.codemodel.JFormatter;
import com.sun.codemodel.JGenerifiable;
import com.sun.codemodel.JPackage;
import com.sun.codemodel.JTypeVar;

public final class JMultiTypeVarBound extends JClass implements JDeclaration {
    
    private final String name;
    
    private JClass bound;
    private Set<JClass> bounds = Sets.newHashSet();

    public JMultiTypeVarBound(JCodeModel owner, String _name) {
        super(owner);
        this.name = _name;
    }
    
    public String name() {
        return name;
    }

    public String fullName() {
        return name;
    }

    public JPackage _package() {
        return null;
    }
    
    /**
     * Adds a bound to this variable.
     * 
     * @return  this
     */
    public JMultiTypeVarBound bound( JClass c ) {
    	if (bound == null) {
    		bound = c;
    	} else {
    		bounds.add(c);
    	}
    	
        return this;
    }

    /**
     * Returns the class bound of this variable.
     * 
     * <p>
     * If no bound is given, this method returns {@link Object}.
     */
    public JClass _extends() {
        if(bound!=null)
            return bound;
        else
            return owner().ref(Object.class);
    }

    /**
     * Returns the interface bounds of this variable.
     */
    public Iterator<JClass> _implements() {
        return bounds.iterator();
    }

    public boolean isInterface() {
        return false;
    }

    public boolean isAbstract() {
        return false;
    }

    /**
     * Prints out the declaration of the variable.
     */
    public void declare(JFormatter f) {
    }


    protected JClass substituteParams(JTypeVar[] variables, List<JClass> bindings) {
        return this;
    }

    public void generate(JFormatter f) {
        f.g(bound);
        
        for (JClass b : bounds) {
        	f.p('&');
        	f.g(b);
        }
    }
}
